Cooperative Extension: Maine Wild Blueberries

There was an infection period in some fields from Saturday, May 14 to Sunday, May 15 .  Only our weather stations in Sedgwick (Sunday, 1:00 a.m.start), Columbia (Sunday, 12:20 a.m. start)  and East Machias (Sunday 2:00 a.m. start) detected long enough leaf wetness to cause an infection period.   All other field sites were too short a […]

Waldo, Lincoln, Knox Counties I am not sure if you are done yet or not.  We saw numerous spore-producing mummy berry cups at the field in Hope (Appleton) on Wednesday, May 11.  I have no reports of cups from Liberty or other areas.  If you have a wet or slower field you may still have […]

I had new reports on Friday of pinheads in some fields and dried up cups in other fields near by.  I suspect we are getting near the end, but I think we still have cups in most fields.  With this rainy weather we had over the weekend, many of our fields had one to three […]

We had another mummy berry infection period in most areas where we have weather stations.  All locations EXCEPT Waldoboro and Searsport had an infection period that started around Thursday, May 5 and extended to Friday, May 6.  The infection period started on Thursday, May 5 between 5:00 p.m. and 7:00 p.m. in all locations. With […]

I have reports of cups still present in Appleton and Liberty and all through Downeast.  I suspect there are still mummy berry cups through out the area. I suspect the cups will last through to next week with the cool wet weather were are forecast to have this weekend.   We had another infection event […]

There  has been weather to cause an infection period in most blueberry growing areas.  The weather has been dry and many people report dried up pinheads in their fields, I think it is too early for the fungus to be gone yet.  I suspect most fields still have cups and would have experienced an infection […]

The rain/snow on Tuesday, April 26 was not enough to cause an infection period for mummy berry. The air temperature was too cold.  Most fields would have needed about 15 hours of wetness and we did not get that long a period anywhere with weather stations. Plants in the Midcoast area are susceptible in many […]

Southern Hancock There were conditions for an infection period overnight from April 22 to April 23 reported at our weather stations in N. Ellsworth and Sedgwick.  There was a borderline infection period at our station in Eastbrook/Franklin.  The leaf wetness was just long enough to be an infection period. I have reports of cups and […]